Thread (11 messages) 11 messages, 6 authors, 2005-08-03

Re: Serial console

From: Daniel Ann <hidden>
Date: 2005-08-01 01:27:01

Thanks for your input Anton.
I'm not all that certain about sandpoint platform has its own serial
driver so I've worked with 8250.c. Anyway, I've got it working now. It
was problem with interrupt. As soon as I changed interrupt from EGDE
to LEVEL it began working. Altho I'm faced with yet another problem
with openpic but I'm digging thru it at the moment.

BTW, I have no idea why EDGE didnt work and LEVEL does.

Cheers,
Daniel

On 7/30/05, Anton W=F6llert [off-list ref] wrote:
Daniel Ann wrote:
quoted
Hi folks,

Having all the kernel boot up log on console means that I've done some
part right. But why am I not getting anything from the user processes
on the console screen ?

Is there anything I need to do on the kernel config ?
=20
Hi, we've had the same problem some time ago on a tqm850l (mpc850). Our
problem was, that we had registered two serial consoles in the kernel
config or something like that. we had to disable all serial-driver stuff
and enable just the platform-specific serial-console driver. we tracked
this down with inserting a printk(buf) into the tty_write fs-op of the
serial-port driver in drivers/char/tty_io.c. the ttyS0 was used but has
taken another serial-driver than the platform specific.
=20
may this help you :)
=20
=20
anton
=20

--=20
Daniel
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